/* ==========================================================================
   THE EVENTS AGENCY - Core Design System & Styling
   Author: John - Event & Exhibition Operations Specialist
   Language: British English (colours, transitions, spatial layouts)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Theme Variables - Dark (Default) */
    --bg-primary: #0a0f1d;
    --bg-secondary: #111827;
    --bg-card: rgba(31, 41, 55, 0.45);
    --bg-card-hover: rgba(55, 65, 81, 0.6);
    --bg-header: rgba(10, 15, 29, 0.85);
    --bg-modal: #111827;
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #14b8a6; /* Teal */
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #14b8a6 100%);
    --accent-glow: rgba(99, 102, 241, 0.35);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.16);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-accent: 0 10px 30px -10px rgba(99, 102, 241, 0.4);

    --glass-blur: blur(12px);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-header: rgba(248, 250, 252, 0.85);
    --bg-modal: #ffffff;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent-primary: #4f46e5;
    --accent-secondary: #0d9488;
    --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #0d9488 100%);
    --accent-glow: rgba(79, 70, 229, 0.15);
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-color-hover: rgba(15, 23, 42, 0.16);
    
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
    --shadow-accent: 0 10px 30px -10px rgba(79, 70, 229, 0.2);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Styles
   -------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

button, input, textarea, select {
    font-family: inherit;
    outline: none;
}

/* Accessibility: Skip to Content */
.skip-link {
    position: absolute;
    top: -80px;
    left: 20px;
    background: var(--accent-gradient);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 8px;
    z-index: 10000;
    transition: top 0.2s ease;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.skip-link:focus {
    top: 20px;
}

/* Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --------------------------------------------------------------------------
   3. Main Header & Navigation
   -------------------------------------------------------------------------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-header);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-lg);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
    transition: var(--transition-smooth);
}

.main-header.scrolled .header-container {
    padding: 12px 24px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.logo-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-right: 4px;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
    border-color: var(--accent-primary);
    background-color: rgba(99, 102, 241, 0.05);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
    transition: transform 0.5s ease;
}

body.dark-theme .moon-icon {
    display: none;
}

body.light-theme .sun-icon {
    display: none;
}

/* CTA Button */
.cta-button {
    background: var(--accent-gradient);
    color: #ffffff;
    padding: 10px 22px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

/* Mobile Toggle */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    padding: 4px;
    z-index: 1002;
}

.mobile-nav-toggle .bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-image: url('images/hero_event_bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 15, 29, 0.95) 0%, rgba(10, 15, 29, 0.75) 50%, rgba(10, 15, 29, 0.9) 100%);
    z-index: 1;
}

body.light-theme .hero-bg-overlay {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.97) 0%, rgba(248, 250, 252, 0.8) 50%, rgba(248, 250, 252, 0.95) 100%);
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    max-width: 700px;
}

/* Availability Badge */
.availability-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.25);
    color: var(--accent-secondary);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.02em;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-secondary);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(20, 184, 166, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(20, 184, 166, 0);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* Base Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: var(--shadow-accent);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px -10px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

body.light-theme .btn-secondary {
    background: rgba(15, 23, 42, 0.03);
    border-color: rgba(15, 23, 42, 0.15);
}

body.light-theme .btn-secondary:hover {
    background: rgba(15, 23, 42, 0.06);
    border-color: var(--text-primary);
}

/* Hero Stats Panel */
.hero-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background-color: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
}

.stat-card {
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.stat-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Animations for Load */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards ease-out;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-up-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation-delay: 0.2s;
}

.fade-in-up-delay-2 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation-delay: 0.4s;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   5. Sections Architecture
   -------------------------------------------------------------------------- */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-underline {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    margin: 0 auto;
    border-radius: 2px;
}

/* --------------------------------------------------------------------------
   6. About Section
   -------------------------------------------------------------------------- */
.about-section {
    background-color: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.about-image-container {
    position: relative;
}

.about-image-frame {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.about-image-frame::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 15, 29, 0) 60%, rgba(10, 15, 29, 0.4) 100%);
}

.about-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: var(--transition-bounce);
}

.about-image-container:hover .about-img {
    transform: scale(1.03);
}

.experience-badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--accent-gradient);
    color: #ffffff;
    padding: 16px 28px;
    border-radius: 20px;
    box-shadow: var(--shadow-accent);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
}

.exp-years {
    font-size: 1.3rem;
    font-weight: 800;
    line-height: 1.1;
}

.exp-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.about-text-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.lead-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 500;
}

.about-text-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.about-partnerships h4 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 600;
}

.partnership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.partnership-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    transition: var(--transition-smooth);
}

.partnership-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.partner-icon {
    color: var(--accent-secondary);
    width: 32px;
    height: 32px;
    margin-bottom: 12px;
}

.partner-icon svg {
    width: 24px;
    height: 24px;
}

.partnership-card h5 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.partnership-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   7. Services Section
   -------------------------------------------------------------------------- */
.services-section {
    background-color: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background-color: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px);
    background-color: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-xl);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    background-color: var(--accent-primary);
    color: #ffffff;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.35);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 1.35rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   8. Portfolio Section
   -------------------------------------------------------------------------- */
.portfolio-section {
    background-color: var(--bg-secondary);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 10px 22px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-color-hover);
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: var(--shadow-accent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.portfolio-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.portfolio-card.hidden {
    display: none;
}

.portfolio-card:hover {
    transform: scale(1.02);
    border-color: var(--accent-secondary);
    box-shadow: var(--shadow-lg);
}

.card-inner {
    padding: 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.event-venue-tag {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    background-color: rgba(20, 184, 166, 0.1);
    color: var(--accent-secondary);
    border-radius: 50px;
    margin-bottom: 16px;
    border: 1px solid rgba(20, 184, 166, 0.15);
}

.event-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 8px;
}

.portfolio-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.event-role {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 12px;
}

.event-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   9. Terms & Conditions Summary Section
   -------------------------------------------------------------------------- */
.terms-section {
    background-color: var(--bg-primary);
}

.terms-intro-card {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.terms-intro-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.terms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.term-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 36px;
    transition: var(--transition-smooth);
}

.term-card:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-md);
}

.term-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.term-icon svg {
    width: 24px;
    height: 24px;
}

.term-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.term-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.bullet-list {
    list-style: none;
    padding-left: 0;
}

.bullet-list li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
}

.bullet-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
    font-weight: bold;
    font-size: 1.2rem;
    top: -2px;
}

.terms-action-container {
    text-align: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 20px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.terms-action-container p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   10. Contact Us Section
   -------------------------------------------------------------------------- */
.contact-section {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
    align-items: stretch;
}

.contact-info-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 48px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-lg);
}

.contact-info-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.contact-info-panel p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.method-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.method-icon {
    width: 44px;
    height: 44px;
    background-color: rgba(20, 184, 166, 0.1);
    color: var(--accent-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-icon svg {
    width: 22px;
    height: 22px;
}

.method-details {
    display: flex;
    flex-direction: column;
}

.method-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.method-link {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.method-link:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.method-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Copy Email button styling */
.copy-email-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.copy-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.copy-btn svg {
    width: 18px;
    height: 18px;
}

.copy-tooltip {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background-color: #0f172a;
    color: #ffffff;
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    white-space: nowrap;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.copy-btn:hover .copy-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.social-links-panel h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.social-icons a:hover {
    color: #ffffff;
    background: var(--accent-gradient);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.social-icons a svg {
    width: 20px;
    height: 20px;
}

/* inquiry form panel */
.contact-form-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 48px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    position: relative;
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background-color: var(--bg-secondary);
}

/* Floating Label Mechanics */
.form-group label {
    position: absolute;
    left: 16px;
    top: 18px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    pointer-events: none;
    transition: var(--transition-smooth);
    font-weight: 500;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    transform: translateY(-28px) scale(0.85);
    left: 4px;
    color: var(--accent-primary);
    font-weight: 600;
}

/* Date input specific formatting */
.form-group input[type="date"] {
    padding-top: 20px;
    padding-bottom: 12px;
}

.form-group label.date-label {
    transform: translateY(-28px) scale(0.85);
    left: 4px;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Errors style */
.form-group.has-error input,
.form-group.has-error textarea {
    border-color: #ef4444;
}

.form-group.has-error label {
    color: #ef4444;
}

.error-msg {
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 6px;
    display: none;
    font-weight: 500;
}

.form-group.has-error .error-msg,
.form-checkbox-group.has-error .error-msg {
    display: block;
}

/* Custom Checkbox Design */
.form-checkbox-group {
    position: relative;
    margin-bottom: 8px;
}

.checkbox-container {
    display: flex;
    position: relative;
    padding-left: 28px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    user-select: none;
    line-height: 1.4;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 2px;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: var(--transition-smooth);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--accent-primary);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 11px;
    border: solid #ffffff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark::after {
    display: block;
}

.submit-btn {
    width: 100%;
    height: 52px;
    font-size: 1rem;
    border: none;
    position: relative;
    overflow: hidden;
}

/* Spinner Animation */
.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-loader.hidden {
    display: none;
}

.btn-text.hidden {
    display: none;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Form success panel */
.form-success-message {
    text-align: center;
    padding: 32px 0;
    animation: fadeIn 0.5s ease-out;
}

.form-success-message.hidden {
    display: none;
}

.success-icon {
    width: 64px;
    height: 64px;
    background-color: rgba(20, 184, 166, 0.15);
    color: var(--accent-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: scaleUp 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleUp {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.success-icon svg {
    width: 32px;
    height: 32px;
}

.form-success-message h3 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.form-success-message p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   11. Footer Section
   -------------------------------------------------------------------------- */
.main-footer {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    padding: 80px 0 32px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-grid h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul,
.footer-legal ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a,
.footer-legal a {
    font-size: 0.95rem;
}

.footer-links a:hover,
.footer-legal a:hover {
    color: var(--accent-primary);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.footer-bottom p {
    font-size: 0.85rem;
}

.back-to-top {
    width: 42px;
    height: 42px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.back-to-top:hover {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--shadow-accent);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* --------------------------------------------------------------------------
   12. Premium Custom Modals
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 15, 29, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-container {
    width: 100%;
    max-width: 800px;
    background-color: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    animation: modalShow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

@keyframes modalShow {
    from { transform: scale(0.9) translateY(20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.close-modal-btn {
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    transition: var(--transition-smooth);
}

.close-modal-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 32px;
    overflow-y: auto;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.modal-body h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 28px 0 12px;
}

.modal-body h3:first-of-type {
    margin-top: 0;
}

.modal-body h4 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin: 16px 0 8px;
}

.modal-body p {
    margin-bottom: 16px;
    line-height: 1.6;
}

.last-updated {
    font-size: 0.85rem;
    font-style: italic;
    margin-bottom: 24px;
    color: var(--text-muted);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: 20px 32px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.05);
}

/* --------------------------------------------------------------------------
   13. Cookie Consent Banner
   -------------------------------------------------------------------------- */
.cookie-banner-container {
    position: fixed;
    bottom: 24px;
    left: 24px;
    max-width: 480px;
    background-color: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    z-index: 1500;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transform: translateY(150%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-banner-container.visible {
    transform: translateY(0);
}

.cookie-content h4 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.cookie-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.cookie-content a {
    color: var(--accent-primary);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   14. Smartphone Responsiveness (Mobile First / Queries)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image-container {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .terms-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    /* Navbar stack behaviour */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-secondary);
        z-index: 1001;
        padding: 100px 32px;
        box-shadow: var(--shadow-xl);
        transition: right 0.4s ease;
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 28px;
    }
    
    .nav-link {
        font-size: 1.15rem;
    }
    
    /* Toggle state bars */
    .mobile-nav-toggle.open .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    
    .mobile-nav-toggle.open .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-nav-toggle.open .bar:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
    
    /* Hero scaling */
    .hero-section {
        padding-top: 140px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-description {
        font-size: 1.05rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: center;
        padding: 24px;
    }
    
    .stat-card {
        width: 100%;
        align-items: center;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column-reverse;
        gap: 20px;
        text-align: center;
    }
    
    .contact-form-panel {
        padding: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-info-panel {
        padding: 32px;
    }
    
    .experience-badge {
        right: 12px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 2.3rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cookie-banner-container {
        left: 12px;
        right: 12px;
        bottom: 12px;
        width: auto;
    }
    
    .modal-container {
        max-height: 90vh;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .partnership-grid {
        grid-template-columns: 1fr;
    }
}